{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "discover vulnerability", "arguments": ["supported platform", "vulnerable system version", "time", "common vulnerabilities and exposures", "vulnerable system owner", "vulnerability", "vulnerable system"]}], "input": "This vulnerability only affects Samba installations being used as Active Directory domain controllers , so those using Samba in non-domain control roles do n't need to be concerned ."}
{"discover vulnerability": [{"supported platform": "NAN", "vulnerable system version": "NAN", "time": "NAN", "common vulnerabilities and exposures": "NAN", "vulnerable system owner": "NAN", "vulnerability": "This vulnerability", "vulnerable system": "Samba installations"}]}